Genuine Casio FX-991MS Scientific Calculator 2 Way Power (Solar + Battery)

Standard Model

Features 

401 Functions

S-V.P.A.M. ~super visually perfect algebraic method

Fraction Calculations

Combination and permutation

Statistics (STAT-data editor, Standard deviation, Regression analysis)

9 Variables

Multi-replay

Equation calculations, Vector calculations, Differential calculations, SOLVE function

Integration calculations

Base-n calculations/ conversions

Complex number calculations

Logical operations

Matrix calculations

Engineering symbol calculations

40 Scientific calculations

40 Matrix conversions (20 conversion pairs)

CALC memory

2-Line Display

10+2 Digits

Dot Matrix

Plastic Keys

Comes with slide-on hard case

Button-type Battery

2-way Power (Solar + Battery)

What's in the box: 1 x Casio FX-991MS Scientific Calculator, 1 x Original User's Guide